<!doctype html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
    <title>首页</title>
</head>
<body>
<!--
    argin-top: 15%  >> 离浏览器顶部距离15%
    align="center"  >> 让内容居中显示
-->
<header style="margin-top: 15%">
    <h1 align="center">CRAWLER SEARCH ENGINE</h1>
</header>
<form action="/" method="get">
    <div align="center">
        <input type="text" name="args" placeholder="搜寻" style="width:365px;height: 50px"/>
        <input type="submit"  value="Search" style="height: 56px;"/>
    </div>
</form>
</body>
</html>